There's only one norm : *

Click on a logo or title to link to the corresponding website
* Global Standards One (GS1)
* Electronic Product Code (EPC) Global
* International Standardisation Organisation (ISO)
* International Electrotechnical Commission (IEC)
* International Telecommunication Union (ITU)
* European Union (EU) / harmonised standards
* Comité Européen de Normalisation (CEN)
* Comité Européen de Normalisation Electrotechnique (CENELEC)
* European Telecommunications Standards Institute (ETSI)
Deutsche Kommission Elektrotechnik Elektronik Informationstechnik im DIN und VDE (DKE)
American National Standards Institute (ANSI)
* Electronic Industries Alliance (EIA)
* Underwriters Laboratories (UL)
* Federal Communications Commission (FCC)
* Institute of Electrical & Electronics Engineers (IEEE) / Standards Association
* Organisation Internationale de Métrologie Légale (OIML)
* Bureau International des Poids et Mesures (BIPM)
* Compliance Engineering magazine
* World Standards Services Network
* European Patent Office (EPO) / Espacenet
* United States Patents & Trademark Office (USPTO) / patent register